Photonic Propulsion Could Send a Spacecraft to Mars in As Little As 3 Days https://t.co/ViY6IY2gFV https://t.co/mS07B4CUiA
— iPhoneMaster13 (@iPhoneMaster13) February 25, 2016
from Twitter https://twitter.com/iPhoneMaster13
February 25, 2016 at 07:52AM
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